CVE-2026-111768
High
Description
MCP TypeScript SDK: One HTTP request within the default size limit could exhaust server memory during validation
SeverityHigh
CVSS7.5
Exploit probability—
Product@modelcontextprotocol/sdk
PublishedOct 20, 2026
First seenOct 20, 2026
Weakness typeCWE-770Allocation of resources without limits
How to fix
Update
- @modelcontextprotocol/sdk1.32.0 or later
- @modelcontextprotocol/server2.3.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| @modelcontextprotocol/sdknpm | 1.3.0 ≤ v < 1.32.0 | 1.32.0 |
| @modelcontextprotocol/servernpm | 2.0.0 ≤ v < 2.3.0 | 2.3.0 |
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